•A security date watermark is printed on all valid IRC certificates issued from 19 May 2016.

This makes it quick and easy to identify a valid certificate (or copy certificate) issued by RORC or UNCL. Current certificates issued before 19 May 2016 are still valid and will not be reprinted.

Endorsement: A reminder that this is denoted by the ‘ENDORSED’ stamp at the bottom right of the certificate.

Non-endorsed certificates will just have the red IRC Rating Authority stamp. If you need Endorsement for an event you are entering, please contact the Rating Office as soon as possible for advice.

Seahorse Magazine free issues! We are pleased to say that the extra value for your certification continues for 2016: All IRC certificate holders have an automatic subscription to every other issue of Seahorse Magazine in digital format. Activate it by clicking on the link on www.ircrating.org and use your certificate number and passcode (as it appears at the bottom your IRC certificate) to login.

Please wait 2-3 days before accessing the offer to allow the database to be updated.

•Validity dates are shown at the bottom of the certificate. When your certificate expires you will receive an invitation to renew it, please make sure your contact details are kept up to date by emailing us with any changes to your postal or email address.

•Please check the data and details on the certificate.

If there is anything you think is incorrect please contact us; however for production designs remember some standard data may have been used which differs from that submitted (usually hull data).

•Ratings may go up, down or stay the same from year to year, depending on changes and developments in the maths behind the rating calculation. This is developed on an annual basis and is generic for certain design characteristics.

•Age Allowance is automatically applied to boats over 3 years old, but it is a small part of the calculation. (It cannot be assumed that the rating will reduce each year because of age allowance).

•Crew limitations IRC Crew Number is not variable by a boat and has no effect on TCC (see also p.31 of the Yearbook).

CERTIFICATE ADMINISTRATION

Amended or Trial certificates: We cannot accept data by telephone.

Please make sure you complete the ‘Source of Information’ to avoid any delays, thank you.

We reserve the right to refuse to amend a certificate if we believe its purpose is to take advantage of a forecast eg. reducing sail for a race that is forecast to be windy.

If you have an Endorsed certificate, remember that any amendments to rated data will require official measurement, please refer to our website especially regarding sail data and talk to your Rule Authority for advice if necessary.

Change of Ownership: If you sell your boat and the new owner wishes to race it, or if you buy a boat with a current IRC certificate, then Re-Registration is required.

Short-handed certificates: If you do short-handed (1 or 2 people) racing, and your boat is in a different configuration for this, you can apply for a separate Short-Handed certificate, see IRC Rule 8.2.1.

STIX and AVS Stability data : If you are planning to enter an event that is OSR Cat 3 or over you may need to have STIX & AVS (stability) data on your IRC certificate. Please check the specific events you are entering, to see if it is required. Information about STIX & AVS can be found on the IRC website: http://www.ircrating.org/technical-a-certification/sssn-a-stix.

Once obtained, the information will be added to your certificate free of charge as long as there are no other changes.

Thank you for applying for a 2015 IRC certificate, your ticket to another season’s great racing!

The following notes will help you get the most from your IRC rating.

Endorsement: A reminder that this is denoted by the ‘ENDORSED’ stamp at the bottom right of the certificate. Non-endorsed certificates will just have the red IRC Rating Authority stamp. If you need Endorsement for an event you are entering, please contact the Rating Office as soon as possible for advice.

Heavy Weather Jib area (for boats rated with single furling headsail): The approximate HWJ area has been removed from the certificate to avoid confusion with Special Regulation requirements.

Seahorse Magazine free issues! We are pleased to say that the extra value for your certification continues for 2015: All IRC certificate holders have an automatic subscription to every other issue of Seahorse Magazine in digital format. Activate it by clicking on the link on www.ircrating.org and use your certificate number and passcode (as it appears at the bottom your IRC certificate) to login.

Validity dates are shown at the bottom of the certificate. When your certificate expires you will receive an invitation to renew it, please make sure your contact details are kept up to date by emailing us with any changes to your postal or email address.

Please check the data and details on the certificate. If there is anything you think is incorrect please contact us; however for production designs remember some standard data may have been used which differs from that submitted (usually hull data).

Ratings may go up, down or stay the same from year to year, depending on changes and developments in the maths behind the rating calculation. This is developed on an annual basis and is generic for certain design characteristics.

Age Allowance is automatically applied to boats over 3 years old, but it is a small part of the calculation. (It cannot be assumed that the rating will reduce each year because of age allowance).

Crew limitations IRC Crew Number is not variable by a boat and has no effect on TCC (see also p.31 of the Yearbook).

Amended or Trial certificates: If you need to amend your certificate, or wish to run a trial certificate(s), the relevant forms can be found on www.irc-sea.com in the Downloads section

.

Please use the appropriate form to apply for a certificate as this reduces the risk of omissions in data, or inputting errors. We cannot accept data by telephone. Please make sure you complete the ‘Source of Information’ to avoid any delays, thank you.

Note that there are limits to the number of trial certificates that are allowed, you can find details on the IRC website. http://www.ircrating.org/technical-a-certification/certificates-extra-info.

We reserve the right to refuse to amend a certificate if we believe its purpose is to take advantage of a forecast eg. reducing sail for a race that is forecast to be windy.

If you have an Endorsed certificate, remember that any amendments to rated data will require official measurement, please refer to our website especially regarding sail data and talk to the Rating Office for advice if necessary.

Change of Ownership: If you sell your boat and the new owner wishes to race it, or if you buy a boat with a current IRC certificate, then Re-Registration is required.

Short-handed certificates: If you do short-handed (1 or 2 people) racing, and your boat is in a different configuration for this, you can apply for a separate Short-Handed certificate, see IRC Rule 8.2.1. The application form for this is on our website.

STIX and AVS Stability data : If you are planning to enter an event that is OSR Cat 3 or over you may need to have STIX & AVS (stability) data on your IRC certificate. Please check the specific events you are entering, to see if it is required. Information about STIX & AVS can be found on the IRC website: http://www.ircrating.org/technical-a-certification/sssn-a-stix. Once obtained, the information will be added to your certificate free of charge as long as there are no other changes.

Thank you for applying for a 2014 IRC certificate, your ticket to IRC’s 30th anniversary party!

The following notes will help you get the most from your IRC rating.

Endorsement: A reminder that this is denoted by the ‘ENDORSED’ stamp at the bottom right of the certificate. Non-endorsed certificates will just have the red IRC Rating Authority stamp. If you need Endorsement for an event you are entering, please contact the Rating Office as soon as possible for advice.

Headsail data: To reflect the fact that not all the headsail measurements are limited by the IRC Rules, we have changed the certificate layout slightly so that some headsail data is shown as *for information. There is no change to the rule, this is simply an administrative update.

Rig Factor: The formula for Rig Factor calculation has been developed for 2014 which has resulted in a change in RF for certain rig configurations.

Adjustable mast foot and/or forestay: The words describing moveable mast foot and/or forestay have been updated to reflect the change to treating these two aspects separately

Seahorse Magazine free issues! We are pleased to say that the extra value for your certification continues for 2014: All IRC certificate holders have an automatic subscription to every other issue of Seahorse Magazine in digital format. Activate it by clicking on the link on www.ircrating.org and use your certificate number and passcode (as it appears at the bottom your IRC certificate) to login.

Validity dates are shown at the bottom of the certificate. When your certificate expires you will receive an invitation to renew it, please make sure your contact details are kept up to date!

Please check the data and details on the certificate. If there is anything you think is incorrect please contact us; however for production designs remember some standard data may have been used which differs from that submitted (usually hull data).

Ratings may go up, down or stay the same from year to year, depending on changes and developments in the maths behind the rating calculation. This is developed on an annual basis and is generic for certain design characteristics.

Age Allowance is automatically applied to boats over 3 years old, but it is a small part of the calculation. (It cannot be assumed that the rating will reduce each year because of age allowance).

Amended or Trial certificates: If you need to amend your certificate, or wish to run a trial certificate(s), the relevant forms can be obtained from your IRC South East Asia.

Please use the appropriate form to apply for a certificate as this reduces the risk of omissions in data, or inputting errors. We cannot accept data by telephone. Please make sure you complete the ‘Source of Information’ to avoid any delays, thank you.

We reserve the right to refuse to amend a certificate if we believe its purpose is to take advantage of a forecast eg. reducing sail for a race that is forecast to be windy.

If you have an Endorsed certificate, remember that any amendments to rated data will require official measurement, please refer to our website especially regarding sail data and talk to your IRC Rule Authority for advice if necessary.

Change of Ownership: If you sell your boat and the new owner wishes to race it, or if you buy a boat with a current IRC certificate, then Re-Registration is required.

Short-handed certificates: If you do short-handed (1 or 2 people) racing, and your boat is in a different configuration for this, you can apply for a separate Short-Handed certificate, see IRC Rule 8.2.1.

STIX and AVS Stability data : If you are planning to enter an event that is OSR Cat 3 or over you may need to have STIX & AVS (stability) data on your IRC certificate. Please check the specific events you are entering, to see if it is required. Information about STIX & AVS can be found on the IRC website: http://www.ircrating.org/technical-a-certification/sssn-a-stix.

Once obtained, the information will be added to your certificate free of charge as long as there are no other changes.

Please read the following notes to help you get the most from your IRC rating.

Endorsement: A reminder that this is denoted by the ‘ENDORSED’ stamp at the bottom right of the certificate. Non-endorsed certificates will just have the red IRC Rating Authority stamp - if you need Endorsement for an event you are entering, please contact us as soon as possible for advice.

Headsail Upper Width & HSA: You will notice some changes to the headsail data and calculated headsail area were made in 2013. Headsail Head Width (HHB) is no longer used, but Headsail Upper (7/8) Width (HUW) has been added. This has necessitated a change to the way Headsail Area (HSA) is calculated and you will notice that the 2013 HSA figure on your certificate may vary slightly from previous certificates with the same headsail measurements. However, this HSA formula update will have a negligible effect on rating.

Rig Factor: Due to developments in the RF formula, the RF on your 2013 may be slightly different from previous certificates.

Seahorse Magazine free issues! On behalf of IRC certificate holders RORC have negotiated some excellent extra value into your certification... All IRC certificate holders have an automatic subscription to every other issue of Seahorse Magazine in digital format. Your subscription is activated by clicking on the link on the homepage of www.ircrating.org and using your certificate number and passcode (as it appears at the bottom your IRC certificate) as the login information.

GENERAL NOTES

Validity dates are shown at the bottom of the certificate. When your certificate expires you will automatically receive an invitation to renew, please make sure your contact details are kept up to date.

Please check the data and details on the certificate before signing it. If there is anything you think is incorrect please contact us; however for production designs remember some standard data may have been used which differs from that submitted (usually hull data).

Ratings may go up, down or stay the same from year to year, depending on changes and developments in the maths behind the rating calculation. This is developed on an annual basis.

Age Allowance is automatically applied to boats over 3 years old, but it is a small part of the calculation. (It cannot be assumed that the rating will reduce each year because of age allowance).

Amended or Trial certificates: If you need to amend your certificate, or wish to run a trial certificate(s), the relevant forms can be found at www.irc-thailand.com.

Please use the appropriate form to apply for a certificate as this reduces the risk of omissions in data, or inputting errors. We cannot accept data by telephone. Please make sure you complete the ‘Source of Information’ to avoid any delays, thank you.

Note that there are limits to the number of trial certificates that are allowed, you can find details on the IRC website. http://www.ircrating.org/technical-a-certification/certificates-extra-info.

If you have an Endorsed certificate, remember that any amendments to rated data will require official measurement, please refer to our website especially regarding sail data and talk to us for advice if necessary.

Change of Ownership: If you sell your boat and the new owner wishes to race it, or if you buy a boat with a current IRC certificate, then Re-Registration is required. Please contact us for the relevant form. For 2013 we are offering Re-Registration for just £1.00 per metre LH!

Short-handed certificates: If you do short-handed (1 or 2 people) racing, and your boat is in a different configuration for this, you can apply for a separate Short-Handed certificate, see IRC Rule 8.2.1. The application form for this can be found at www.irc-thailand.com

STIX and AVS Stability data : If you are planning to enter an event that is OSR Cat 3 or over you may need to have STIX & AVS (stability) data on your IRC certificate. Please check the specific events to see if it is required. Information about STIX & AVS can be found on the IRC website: http://www.ircrating.org/technical-a-certification/sssn-a-stix. Once obtained, the information will be added to your certificate free of charge as long as there are no other changes.

RIG FACTOR: Some small adjustments have been made to the calculation of Rig Factor for 2012, so you may see a change on your certificate. Change may be up or down. Rig Factor is a calculated value rather than input, and is based on the declaration of rig configuration (no. of sets of spreaders etc.) as well as other internal factors.

HEADSAIL WIDTHS & HSA: If your headsail has widths smaller than the old minima of 50% & 25% of LP, you will notice that the printed HHW & HTW on your certificate are now the actual sizes supplied. In addition the HSA (headsail area) will have changed. These changes are due to the change to Rule 21.7 removing the ‘minimum’ headsail widths.

On behalf of IRC certificate holders RORC has negotiated some excellent extra value into your certification... All IRC certificate holders now have an automatic subscription to every other issue of Seahorse Magazine in digital format. Your subscription is activated by clicking on the link IRC entry point for Seahorse digi subscribers and using your boat name and passcode (as it appears at the bottom your IRC certificate) as the login information.

GENERAL NOTES

Validity dates are shown at the bottom of the certificate. When your certificate expires you will automatically receive an invitation to renew, please make sure your contact details are kept up to date.

Please check the data and details on the certificate before signing it. If there is anything you think is incorrect please contact your Rule Authority; however for production designs remember some standard data may have been used which differs from that submitted (usually hull data).

Ratings may go up, down or stay the same from year to year, depending on changes and developments in the maths behind the rating calculation. This is developed on an annual basis.

Age Allowance is automatically applied to boats over 3 years old, but it is a small part of the calculation. (It cannot be assumed that the rating will reduce each year because of age allowance).

STIX and AVS Stability data : If you are planning to enter an event that is OSR Cat 3 or over you may need to have STIX & AVS (stability) data on your IRC certificate. Please check the specific events to see if it is required. Information about STIX & AVS can be found on the IRC website: http://www.ircrating.org/en/technical-a-certification/sssn-a-stix.html. Once obtained, the information will be added to your certificate free of charge as long as there are no other changes.

Amended or Trial certificates: If you need to amend your certificate, or wish to run a trial certificate(s), the relevant forms can be obtained from your Rule Authority.

Please use the appropriate form to apply for a certificate as this reduces the risk of omissions in data, or inputting errors. We cannot accept data by telephone. Please make sure you complete the ‘Source of Information’ to avoid any delays, thank you.

Note limits to the number of trial certificates that are allowed – details are on the IRC website.

If you have an Endorsed certificate, remember that any amendments to rated data will require official measurement, please refer to our website especially regarding sail data.

Change of Ownership: If you sell your boat and the new owner wishes to race it, or if you buy a boat with a current IRC certificate, then Re-Registration is required. Please contact your Rule Authority for the relevant form.

Short-handed certificates: If you do short-handed (1 or 2 people) racing, and your boat is in a different configuration for this, you can apply for a separate Short-Handed certificate.